add code coverage

.gitignore

@@ -20,6 +20,7 @@ yarn-error.log*
 *.sw*
 
 # Project specific
+coverage
 test/unit/coverage
 .coveralls.yml
 .flowconfig

package.json

@@ -75,7 +75,17 @@
     "testMatch": [
       "**/tests/unit/**/*.spec.(js|jsx|ts|tsx)|**/__tests__/*.(js|jsx|ts|tsx)"
     ],
-    "testURL": "http://localhost/"
+    "testURL": "http://localhost/",
+    "collectCoverage": true,
+    "collectCoverageFrom": [
+      "src/mixins/*.js",
+      "src/components/Select.vue",
+      "!**/node_modules/**"
+    ],
+    "coverageReporters": [
+      "html",
+      "text-summary"
+    ]
   },
   "gitHooks": {
     "pre-commit": "lint-staged"